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GHSA-m6hq-f4w9-qrjj CVE-2025-64725 PYSEC-2026-2042

Weblate has improper validation upon invitation acceptance

Critical PyPI
Severity
0.0 / 10
Critical · CVSS 4.0
Exploit chance (EPSS)
0.35%
Chance of exploitation in the next 30 days. Higher than 28.57% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-286 Incorrect User Management
Fix
5.15
Upgrade weblate to this version or later

Description

Impact

It was possible to accept an invitation opened by a different Weblate user.

Patches

Workarounds

Users should avoid leaving Weblate sessions with an unattended opened invitation.

References

Thanks to Nahid0x for responsibly disclosing this vulnerability to Weblate.

Affected versions

PyPI

PackageVulnerableFixed in
weblate
< 5.15
5.15

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

weblate PyPI → 5.15

pip
pip install --upgrade "weblate>=5.15"
poetry
poetry add "weblate>=5.15"
uv
uv add "weblate>=5.15"

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Attack vector
Local
Attack complexity
High
Attack requirements
Present
Privileges required
Low
User interaction
Passive
Confidentiality (vulnerable system)
Low
Integrity (vulnerable system)
Low
Availability (vulnerable system)
None
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Weakness

CWE-286: Incorrect User Management

The product does not properly manage a user within its environment.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-2q2q-jr9g-v9rf
Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project
High Also affects weblate
GHSA-2p9g-x3cv-5hh4
Private Weblate projects vulnerable to observable object existence disclosure via globally scoped object lookups
Medium Also affects weblate
GHSA-vmfc-9982-2m45
Weblate SSRF: outbound URL guard misses some private ranges
Medium Also affects weblate
GHSA-6wxc-8mgq-w26m
Weblate: Stored HTML injection in editor search preview
Medium Also affects weblate
GHSA-5cmv-3rc4-7279
Weblate vulnerable to XSS via crafted Markdown
Medium Also affects weblate
GHSA-gcg5-86jr-f7jg
Weblate Vulnerable to Private Translation Enumeration via Screenshot API
Medium Also affects weblate
GHSA-cwcx-382v-8m9g
Weblate Vulnerable to Authenticated SSRF via Project Backup Import bypassing validate_repo_url
High Also affects weblate
GHSA-6j8j-4qp3-36p2
Weblate Doesn't Invalidate API Token on Password Change
Medium Also affects weblate
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